Biology Class 11 Chapter 14 Notes
Very important complete computerized notes for Biology Class 11 Chapter 14 Notes written by Prof. Ijaz Ahmed Khan Abbasi Suib. These notes are very helpful in the preparation of Transport of Biology Class 11 for the students of the intermediate and these are according to the paper patterns of all Punjab boards.
Summary and Contents:
Topics which are discussed in the notes are given below:
- Our comprehensive Biology Class 11 Chapter 14 Notes will ensure you're fully prepared for your exams.
- 3) …………………. respiration is the process by which cell utilized oxygen and produces CO2:
a) Cellular
b) Organismic
c) Both of these
d) None of these
- 4) Of the following, which one is better respiratory medium?
a) Air b) Water c) Soil d) None of these
- 5) A liter of water contains ………………. ml of oxygen:
a) 10 b) 20 c) 30 d) 40
- 6) Oxygen contents of fresh air are:
a) 200ml/liter b) 100ml/liter c) 10ml/liter d) 150ml/liter
- 7) Water is more viscous than air by:
a) 25 times b) 150 times c) 75 times d) 50 times
- 8) Oxygen diffuses many times more quickly in air than in water:
a) 4000 times b) 7000 times c) 6500 times d) 8000 times
- 9) Air spaces between mesophyll cells of leaves comprise up to the total volume of the leaf:
a) 20% b) 30% c) 40% d) 50%
- 10) Carbon dioxide enters the leaves through:
a) Plasmodesmata b) Pits c) Hydathodes d) Stomata
- 11) The main sites of exchange of gases in plants are:
a) Stomata b) Lenticels c) Cuticles d) Epidermis
- 12) There are ……………. stomata per square cm of leaf surface in Tobacco plants:
a) 1200 b) 12000 c) 100,000 d) 1000
- 13) Respiratory activity which occurs in plants during day times is called:
a) Photosynthesis
b) Photorespiration
c) Respiration
d) Fermentation
- 14) Rubisco fixes oxygen instead of CO2:
a) Glycolysis
b) Photorespiration
c) Krebs’ Cycle
d) Respiration
- 15) During photorespiration Glycine is converted into serine in the:
a) Mitochondria b) Golgi bodies c) Chloroplast d) Ribosome
- 16) During photorespiration glycine after is formation diffuses into:
a) Ribosome b) Mitochondria c) Peroxisomes d) Glyoxisome
- 17) Active site of Rubisco is evolved to bind:
a) CO2 b) O2 c) Both of these d) H2O
- 18) During photorespiration glycolate diffuses into the membrane bound organelle named as:
a) Mitochondria b) Ribosome c) Peroxisome d) Golgi bodies
- 19) The pathway in which RuBP is converted into serine is called:
a) Breathing
b) Photophosphoryation
c) Photorespiration
d) Electron Transport Chain
- 20) Rubisco is the most abundant protein in:
a) Ribosome b) Mitochondria c) Nucleus d) Chloroplast
- 21) The most abundant protein in chloroplast and probably the most abundant protein in nature is:
a) Haemoglobin b) Insulin c) Globulin d) Rubisco
- 22) A process in which rubisco-bisphosphate / carboxylase / oxygenase (Rubisco) fixes oxygen
instead of CO2 is called:
a) Respiration
b) Photorespiration
c) Glycolysis
d) Krebs’ Cycle
- 62) More than the compounds of tar of tobacco smoke are included in causing:
a) Cancer b) Tuberculosis c) Asthma d) Emphysema
- 63) Emphysema is breakdown of:
a) Trachea b) Bronchi c) Alveoli d) Bronchioles
- 64) More than …………. compounds of tar of tobacco smoke are involved to cause cancer:
a) 5 b) 90 c) 15 d) 10
- 65) Breakdown of alveoli is called:
a) Asthma b) Emphysema c) Tuberculosis d) Lung cancer
- 66) Asthma is associated with sever paroxysm of difficult:
a) Sleeping b) Speaking c) Sneezing d) Breathing
- 67) A person with emphysema must consciously contract muscles in order to breathe out. What
makes this muscles contraction necessary?
a) Constriction of bronchioles
b) Excess mucus blocking air passages
c) Loss of elasticity in alveolar walls
d) Paralysis of cilia in air passages